protoc-contrib

Go primitives for the Google API Improvement Proposals — resource names (AIP-122), ordering (AIP-132), field masks (AIP-134), pagination (AIP-158) and field behavior (AIP-203). Runtime companion to protoc-gen-go-aip.

Generate type-safe Go helpers for Google AIP-shaped APIs from .proto: resource names (AIP-122), List-RPC parsers — filter, order_by, page_token (AIP-160/132/158) — and update FieldMask validation (AIP-134).

A protoc plugin that lints .proto files against Google AIP style guidelines — with YAML, JSON, GitHub Actions, and summary output formats.

A protoc plugin that generates Rust helpers for Google AIP-shaped APIs: resource names (AIP-122), List-RPC parsers (CEL filter, order_by, page_token) and field behavior / field mask validation (AIP-203/134).

MarshalJSON/UnmarshalJSON for your Protobuf messages and enums — protojson-faithful, encoding/json-compatible

Runtime primitives for Google API Improvement Proposals in Rust — page tokens (AIP-158), ordering (AIP-132) and resource names (AIP-122). Companion to protoc-gen-rust-aip.

Generate any file from your Protobuf schema with Go templates — docs, clients, configs, SQL, any language. Sprig plus proto-aware helpers, and read any custom option by name, no Go bindings needed.

Annotate Protobuf fields, get Go SetDefaults() methods — scalars, wrappers, enums, durations, timestamps, oneofs. Plain generated Go, no reflection, and the same annotations as protoc-gen-rust-defaults.

Annotate Protobuf fields once, get Rust set_defaults() for buffa messages — scalars, wrappers, enums, durations, timestamps, oneofs. Same annotations as protoc-gen-go-defaults, so Go and Rust services share one schema.

Shared Protobuf options for the protoc-contrib plugins — declare defaults and JSON behaviour once, read them from Go and Rust. On the BSR as buf.build/protoc-contrib/protoc-types.